Mechanical vacuum gauge

Bourdon tubedigitaldual-scale

Overview
Vacuum measurement, control and adjustment instruments covering unit conversion tables, vacuum and pressure gauges, various vacuum switches (pneumatic, electromechanical, digital, IO-Link), regulators, adjustment valves and related accessories. The products are suitable for measurement and control of dry air and non-corrosive gases, safety signalling, cycle start control, vacuum suction cup control and energy optimisation of vacuum systems.

Vacuum and pressure unit conversion table
Vacuum and pressure unit conversion tables and pressure measurement unit conversion factors (absolute values).

Vacuum and pressure gauges
The measurement method is based on the Bourdon spring principle using section tubes in special copper alloy welded to the threaded pin. Movement is amplified by a lever and transmitted to the pointer. Housings vary by model; face and index protected by clear plastic disc. Available with radial or coaxial connectors, built-in or external flange, dry or glycerine filled. Except Ø 40 mm, other models have double scale dials. Manufactured in compliance with EU safety and measurement standards.

• Product codes: 090315 090320 090325 090310 090110 090116 090210 090510 090516

Vacuum gauge with steel punch
Designed for immediate detection of vacuum level inside tin cans and food containers. Uses a glycerine bath vacuum gauge with a hardened steel punch to perforate containers and a silicone vacuum cup to guarantee seal after perforation. Standard version shown; other versions available on request.

• Product codes: 090599

Mini pneumatic vacuum switches
Extremely compact devices that give or remove a pneumatic signal when a set adjustable vacuum level is reached. Pressure differential between set max and recovery at rest is not adjustable. Suited for controlling vacuum generators and activating pneumatic valves.

• Product codes: 120130 120230

Mini electromechanical vacuum switch
Compact vacuum switch giving an electrical signal at an adjustable vacuum level. Differential between set max and reset is 50–60 mbar (not adjustable). Suited where an electrical signal is needed for safety, cycle start, cup grip check, etc.

• Product code: 120210

Micro digital vacuum switches
Small devices, temperature-compensated and precisely calibrated, provide accurate digital signals. Switching point programmable by an adjustment screw with a red LED indicating output status. Hysteresis = 2% of set value (not adjustable). Polycarbonate enclosure includes sensor and electronics; available with coupler or aluminium manifold. Rotatable display on item 12 05 10. Vacuum connection via male/female M5; electrical via 3-connector cable. Suited for dry air and non-corrosive gases.

• Product codes: 120510P 120510N 120511P 120511N

Analogue vacuum switch
Compact, light ABS enclosure for installation on machines or near application. If accurately calibrated, provides precise measurements. Adjustment range 0 to -1 bar. Outputs: analogue 1–5 V and digital PNP (configurable via Teach-In). Switching point and hysteresis programmable via push buttons; two two-colour LEDs indicate status and error codes. Dual threaded vacuum connection: male G 1/8" or female M5. Electrical M8 4-pin plug; cable in PUR available on request. Suited for measuring and controlling dry air and non-corrosive gases.

• Product codes: 120710

Digital IO-Link vacuum and pressure switches
Robust ABS housing, compact and lightweight. Calibrated and temperature-compensated with integrated display. Two LEDs show the status of two independent digital outputs. Switching points and hysteresis programmable; additional configurables: threshold comparison, NO/NC, unit selection, parameter lock, display inversion. Rotatable display. Pneumatic connections: G 1/8" male or M5 female; electrical M8 4-pin (PUR cable option). IO-Link version identifiable by logo and inscription; enables bidirectional communication, remote parameterization and diagnostics for Industry 4.0.

• Product codes: 121010 122511

Digital vacuum switches (parallelepiped and other series)
Compact ABS enclosures with display of detected values; two independent digital outputs with programmable switching points and hysteresis (0–100% of set value). Additional functions programmable: comparisons, NO/NC contacts, units choice, function locking. Vacuum connections G 1/8" male or M5 female; electrical via M8-4 pin jack or integrated PUR cable for some items. Adjustment ranges typically 0 to -1 bar; some models include analogue 1–5 V output.

• Product codes (examples): 123010A 123010 122010P 123510P

Digital vacuum and pressure switches with two-colour display
Two-colour main display (red/green) and programmable settings visible on a secondary display. Two outlet indicators for digital and analogue outputs. Programmable functions similar to other digital switches. Rapid-install removable data cable supplied as standard on some models.

• Product codes: 124010 124012 124020

Accessories for analogue and digital switches
Cable with axial connector, cable with radial connector, wall-mounting kit, fixing kits and assorted accessory codes.

• Product codes (examples): 001220 001221 001222 001230 001231 001232 001240 001241 001242 001243

Vacuum adjustment valves
Valves that introduce atmospheric air into the circuit when reaching a pre-calibrated vacuum degree to prevent further increase and keep the value constant. Used as regulators on single-pump circuits or as safety valves on uncommissioned tanks/containers and vacuum cup lifting systems. Vacuum level adjusted via a knurled bush with fine thread for accurate calibration. Operating temperature range -20 °C to +200 °C.

• Product codes: 040110 040110INOX 040210 040210INOX 040310 040310INOX 040410 040410INOX 040510 040510INOX

Vacuum regulators (manual and for rough vacuum levels)
Regulators maintain a constant preset secondary vacuum regardless of primary vacuum and flow rates. Operate by membrane-piston exploiting differential between secondary vacuum and atmosphere. Regulators do not release air into the circuit, allowing multiple gripping points at different vacuum degrees from one source. Adjustment via knurled thumb screw (clockwise to increase vacuum). Technical features vary by series:

• Operation: membrane-piston regulator
• Adjustable operating pressure (typical): from 800 to 1 mbar abs (standard regulators); some models from 980 to 1 mbar abs for rough vacuum level regulators
• Flow rate examples: 2 to 160 m3/h (standard) or 20 to 160 m3/h (rough vacuum series)
• Room temperature: -10 to +80 °C
• Installation position: any

Vacuum regulators with pneumatic adjustment
Adjust vacuum via pneumatic cylinder compressed air supply instead of manual screw. Higher supply pressure yields higher vacuum level. Supply pressure ranges and working pressure ranges depend on model family (examples: supply 0–3 bar or 0–5 bar; adjustable working pressure ranges from 800 to 1 mbar abs or 980 to 1 mbar abs). Flow rates, temperature ranges and installation positions similar to manual regulators. Suitable for centralised plants where each outlet requires individual adjustment.

• Product codes (examples across regulator families): 110110 110210 110310 110410 110510 110610 110350 110550 110650 110130 110230 110330 110430 110530 110630 110380 110580 110680 110811 110911 110831 110931

Sealing kits for vacuum reducers
Assorted sealing kits for vacuum reducers with multiple part codes.

• Product codes (examples): 0011113 0011114 0011115 0011116 0011117 0011118 0011119 0011120 0011121 0011122 0011123 0011124 0011125 0011126 0011127 0011128 0011129 0011130

Notes
Values in performance diagrams and tables are indicative and depend on atmospheric pressure, vacuum source flow rate and compressed air quality.

Caractéristiques / spécifications techniques

• Measurement principles: Bourdon spring for mechanical gauges; electronic sensors for digital devices
• Enclosures: ABS or sturdy cases; some models glycerine filled
• Vacuum connection options: male G 1/8" or female M5 (double-threaded) and M5 connectors
• Electrical connections: M8 4-pin threaded plug, integrated PUR cable (where specified), 3-connector cable for micro switches
• Analogue outputs: typical 1–5 V (on select models)
• Digital outputs: PNP digital outputs, two independent channels on many models
• Programming/configuration: push-buttons/Teach-In for switching point and hysteresis; IO-Link enables remote parameterization
• Adjustment ranges: typical 0 to -1 bar for many switches; regulators adjustable down to 1 mbar abs
• Operating temperature ranges: from as low as -20 °C (adjustment valves) up to +200 °C for certain valves; typical regulators -10 to +80 °C
• Flow rates: example ranges from 2 to 160 m3/h up to larger series (e.g. 370–750 m3/h or 390–750 m3/h for large reducers)
• Hysteresis: fixed values on some devices (e.g. 2% for micro digital switches; 50–60 mbar for some electromechanical switches) or adjustable from 0–100% on programmable devices
• Materials: copper alloy section tubes for Bourdon elements, polycarbonate enclosures for small digital devices, stainless variants for certain valves (INOX)